Table 2.

Summary of Model Assumptions

Model	Coverage	Vaccine Efficacy	Serogroups Covered	Duration of Protection	Delay	Herd Effects	Population Targeted
Polysaccharide vaccination (2015–2017)	Calculated from ICG data	80%	A, C, W	2 years	6 weeks	No	2–29 years; 70% of population
Monovalent conjugate C vaccination (2017)	Calculated from ICG data	85%	C	5 years (average)	6 weeks	Yes	1–19 years
Quadrivalent conjugate vaccination (2015)	Calculated from ICG data	85%	A, C, W, Y	5 years (average)	6 weeks	Yes	2–15 years
Theoretical polysaccharide vaccination	85%	80%	A, C, W	2 years	4–8 weeks	No	2–29 years; 70% of population

Abbreviations: ICG, International Coordinating Group.